Integr . Comp . Physiol . 261 : R1286-R1293 . Haveman U , Kuschinsky K . 1982 . Neurochemical aspects of the opioid-induced ‘ catatonia ’. Neurochem . Int . 4 : 199-215 . Heard DJ , Kollias GV , Buss D , Caligiuri R , Coniglario J . 1990 . Comparative cardiovascular effects of intravenous etorphine and carfentanil in domestic goats . J . Zoo Wildl . Med . 21 : 166-170 . Heard DJ , Nichols WW , Buss D , Kollias GV . 1996 . Comparative cardiopulmonary effects of intramuscularly administered etorphine and carfentanil in goats . Am . J . Vet . Res . 57 : 87-96 . Lalley PM . 2003 . µ -Opioid receptor agonist effects on medullary respiratory neurons in the cat : evidence for involvement in certain types of ventilatory disturbances . Am . J . Physiol . Reg . Comp . Physiol . 285 : R1287-R1304 . Lalley PM . 2008 . Opioidergic and dopaminergic modulation of respiration . Resp . Physiol . Neuro . 164 : 160-167 . Lonergan T , Goodchild AK , Christie MJ , Pilowsky PM . 2003 . Presynaptic δ opioid receptors differentially modulate rhythm and pattern generation in the ventral respiratory group of the rat . Neuroscience 121 : 959-973 . Mather L . 1994 . Opioid analgesic drugs . In : Anaesthesia . ( 2nd edition ) Nimmo W , Rowbotham D , Smith G ( ed ). Blackwell Scientific Publications , Oxford , UK , pp . 148-149 . McCrimmon DR , Alheid GF . 2003 . On the opiate trail of respiratory depression . Am . J . Physiol . Reg . Integr . Comp . Physiol . 285 : R1274-R1275 . McKenzie A . 1993 . The Capture and Care Manual . Wildlife Decision Support Services cc and the South African Veterinary Foundation , Pretoria , South Africa , pp . 729 . Nunn JF . 1993 . Nunn ’ s Applied Respiratory Physiology ( 4th edition ). Butterworth Heinemann Ltd , Cambridge , UK , pp . 658 . Pattinson KTS . 2008 . Opioids and the control of respiration . Brit . J . Anaesth . 100 : 747-758 . Roquebert J , Delgoulet C . 1988 . Cardiovascular effects of etorphine in rats . J . Auton . Pharmacol . 8 : 39-43 . Shook JE , Watkins WD , Camporesi EM . 1990 . Differential roles of opioid receptors in respiration , respiratory disease , and opioid-induced respiratory depression . Am . Rev . Resp . Dis . 142 : 895-909 . Still J , Raath JP , Matzner L . 1996 . Respiratory and circulatory parameters of African elephants ( Loxodonta africana ) anaesthtised with etorphine and azaperone . J . S . Afr . Vet . Assoc . 67 : 123-127 . Takeda S , Eriksson LI , Yamamoto Y , Joensen H , Onimaru
H , Lindahl SGE . 2001 . Opioid action on respiratory neuron activity of the isolated respiratory network in newborn rats . Anesthesiology 95 : 740-749 . Wenger S , Boardman W , Buss P , Govender D , Foggin C . 2007 . The cardiopulmonary effects of etorphine , azaperone , detomidine , and butorphanol in field anesthetized white rhinoceros ( Ceratotherium simum ). J . Zoo Wildl . Med . 38 : 380-387 .
Using heart rate variability in wildlife research to assess stress
https :// vimeo . com / 216805767
Friederike Pohlin 1 , Kristin Brabender 2 , Gerhard Fluch 1 , Gabrielle Stalder 1 , Thierry Petit 3 and Christian Walzer 1
1
University of Veterinary Medicine Vienna , Department of Integrative Biology and Evolution , Research Institute of Wildlife Ecology , Savoyenstraße 1 , 1160 Vienna , Austria ; 2 Hortobagy National Park , Hungary ; 3 Zoo de la Palmyre , 17570 Les Mathes , France
Human influence on natural systems is increasing continuously . Knowing in how far animals can adapt to changing environmental conditions without fitness impairments is essential to understand the consequences of these influences ( Dantzer et al ., 2014 , Wikelski and Cooke , 2006 ).
Stress is defined as a state in which homeostasis is lost ( Reeder and Kramer , 2005 ). This includes physiological “ stress ” that occurs in anticipation of predictable seasonal changes , but also stress that occurs in response to unpredictable anthropogenic disturbances ( Dantzer et al ., 2014 ). In general , the organism is able to cope adequately with changing environmental stimuli and will only be “ stressed ” when allostatic overload is reached [ concept of allostasis ( McEwen and Wingfield , 2003 )], or when its adaptive capacity is reduced [ reactive scope model ( Romero et al ., 2009 )]. The two predominant physiological responses to environmental stimuli are ( 1 ) the activation of the
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